|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
05-02-2020, 01:00 PM | #1 |
Senior Member
Join Date: Jul 2010
Posts: 136
|
Piston ring suggestions
My '34 Coupe has a MCF (Mark Kirby) built engine built in the mid '90's. It has been a great engine with 25,000 miles and great power Unfortunately the blower drive pulley beat the key way to pieces in the crank. My crankshaft guy said he could rebuild the crank snout but upon magnafluxing it showed cracks. I have purchased a new crank but have decided to do a complete refresh, including new piston rings, the bearings checked out fine. I believe Mark installed Perfect Circle chrome rings. The engine has 286". Potvin cam and B&M blower, about 5 lbs boost. The bore checks out OK but will be honed. Any suggestions on make and type of rings would be appreciated.. Thanks Guys...
|
05-02-2020, 08:29 PM | #2 |
Senior Member
Join Date: Jan 2011
Location: Central Ohio
Posts: 5,064
|
Re: Piston ring suggestions
Ring availability will be determined by the size of your bores and the corresponding ring grooves in the pistons. My guess is that it will use standard ring sizes from "back in the day", so you'll not have many options - other than cast iron rings like Hastings, etc.. Now days I only use 1.5, 1.5, 3.0 mm metric rings - just so much better than the old Hastings/Grant stuff we all used to run . . . but you'd have to have new pistons to use these newer ring packages. If you have trouble finding rings, consider going to a new Ross piston with metric rings . . . is the way to go today.
|
Sponsored Links (Register now to hide all advertisements) |
|
05-03-2020, 01:05 AM | #3 |
Senior Member
Join Date: Apr 2015
Location: Sweden
Posts: 3,045
|
Re: Piston ring suggestions
For that little boost you donīt need anything exotic for rings...
The need for stainless and coating comes when you start using exotic fuels and nitrous. Get the rings before you hone...if you descide to go with coated rings they want a different finish of cylinderwall. |
05-03-2020, 01:13 AM | #4 | |
Senior Member
Join Date: May 2010
Location: now Kuna, Idaho
Posts: 3,779
|
Re: Piston ring suggestions
Quote:
|
|
05-03-2020, 01:59 PM | #5 | |
Senior Member
Join Date: May 2010
Location: NJ
Posts: 6,177
|
Re: Piston ring suggestions
Quote:
One nice thing about Ross and I'm sure others (Wisco, Arias, etc.), is that you can order a piston to the size needed, not the size they have in stock. Meaning, if a honing will do it, great. If the honing takes off more than you had hoped, you can get pistons the correct size instead of having to bore to make perfect. For Ross, it took 4 weeks from ordering to delivery to have a set of custom made pistons shipped to the builder. For older, cast style rings, I would call Egge. If they don't have them, I'm sure they can direct you to how does. |
|
05-03-2020, 07:38 PM | #6 |
Senior Member
Join Date: Jul 2010
Posts: 136
|
Re: Piston ring suggestions
Sponsored Links (Register now to hide all advertisements)
|
|
|
Sponsored Links (Register now to hide all advertisements) |
|